I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
chefs chiefs chafes chaffs chives chufas chuffs sheafs chivies chevies chivvies shaves shives shoves shavies sheaves sheeves chophouse
chefs efs chiefs tophes keefs toughies teffs sophies roughies reifs beefs effs fiefs jefes defis kefs leafs kiefs neifs nephews ouphes raphes reefs refs roughhews seifs ghees sheafs
chef chafe chaff chaffy chevy chief chufa chuff chuffy